Propranolol is one of popular drugs also known as beta-blockers. The most important brand name for this medicine is Inderal. Propranolol acts to reduce hypertension, arrhythmia, migraines, and other heart conditions. It blocks the beta-adrenergic stimulation all over the body. This slows down the heart rate and reduces dilation of blood vessels. Propranolol is often used in combination with other drugs as well. Propranolol is a medication used to treat hypertension. It is prescribed to patients that have been diagnosed with high blood pressure disorder. Propranolol works by blocking the activities of certain chemicals in the body such as epinephrine that affects the blood vessels. The drug helps in expanding or vasodilating the blood vessels so as to lower blood pressure. Propranolol is a better blocker that is supplied in the form of a solution, and thus, it should be administered orally with or without food or as an injection (IV). Apart from treating hypertension, the drug can also be used for tremors, control symptoms of anxiety and irregular heartbeats.